Filling machine



July 28, 1925. 1,547,336

E. N. LI'GHTFOOT ET AL FILLING MACHINE Original Fil/SQ Aug. 13 1921 eats-SheetA l July 28, 1925. 1,547,336

` E. N. LIGHTFOOT ET AL FILLING MACHINE Original Filed Aug. 13, 1921 10 Sheets-Sheet 2 July 28, 1925.

E.- N. LIGHTFOOT ET AL FILLING MACHINE Original Filed Ag. 13, 1921 10 Sheets-Sheet 5 July 28, 1925.

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July 28, 1925.

E. N. LIGHTFoo-r ET AL FILLING MACHINE v 1o sheets-sheet '5 original Filed Aug. 1s, 1921 I i L l July 28, 1925. 1,547,336

v E. N'. LIGH'rFooTE-r AL FILLING MACHINE A-or1g1a1 Filed Aug. 15, 1921 1o sheets-sheet e July 28, 1925.

' E. N. LIGHTFOOT ET AL FILLING MACHINE 10 Sheets- Sheet 7 nu i Original Filed Aug. l5, 1921 July 2s, 1925.

' 1,547,336 E. N. LIGHTFoo-r ET AL FILLING MACHINE 1o sheets-sheet s original Filed Aug. 1s, 1921 July 28, 1925.

E. N. LIGHTFOo-r ETYAL FILLING MACHINE Original Filed Aug. 15, 1921 10 Sheets-Sheet 9 faz??? z' 00 Rabe?? C'gd. wm @4.151511 9v @f i @a July 28, 1925. 1,547,336

E. N. LIGHTFOOT ET AL FILLING MACHINE Original Filed Aug. 15, 1921 10 Sheets-Sheet 10 Patented July 28, 1925.

unirse STATES PATENT OFFICE.

EDWIN N. LIGHTFOOT, OF NEVI YORK, vAND ROBERT C. BECK, OF BROOKLYN, NEW

YORK, ASSIGNORS TO THE CUTLER-HAMMER C0., OF MILWAUKEE, WISCON- SIN, A CORPORATION OF VISOONSIN.

FILLING MACHINE.

Appneetien fue@ August 13,1921, serial Ne. 492,028. Renewed December 11, 1924.

York, and Brooklyn, in the county of Kings and State of New York, have'invented new and useful Improvements in F illmg Machilies, of which the following 1s a specification.

heaters may be filled simultaneously andk wherein the flow of insulation to each jacket is independently controlled so that the flow of insulation ceases when the jacket is filled.

Other objects and advantages will hereinafter appear. Y

The views of the drawings are:

Fig. 1 is a lfront elevation of the filling machine.

Fig. 2 is an end elevation of machine.

Fig. 3 is an enlarged side elevation of the vibratory carrier, its vibrator and the tamper lifter.

i is an enlarged horizontal section on line 11-11 of -Fig. 3, showing the funnel cover.

Fig. 5 is a horizontal section on line v5--5 of Fig. 3.

Fig. 6 is a side elevation, partly in section, of the lower vibratory carrier bracket.

Fig, 7 is a horizontal section on line 7-7 of Fig. 6.

Fig. 8 is an enlarged front elevation of the vibrator and tamper lifter operating the filling lmechanism and the electromagnetically opn erated belt shifter. I

. Fig. 9 is a horizontal section on line 9-9 of Fig. 8. y

Fig. 10 is avertical section through the vibrator,tamper lifter and upper carrier bracket.

Fig. 10a is a horizontal section through the tamper on line 1071--10a of Fig. 10.

Fig. 11 is a horizontal section on line 11-11 of Fig. 10.

Fig. 12 is a horizontal section on line 12-12 ef 10.

Fig. 13 is ran'enlarged vertical section through the tension` rod adjustable support on line 13-13 of Fig. 1.

Fig. 14 is an enlarged front elevation of the belt shifter operating mechanism. i

Fig. 15 is an end elevation, partly in section, on line 15-15' of' Fig. 14. Y

Fig. 16 is a vertical section on line 16-`16 Of'Fig. 14.

Fig. 17 is a plan view of a paratus. s

Fig. 18 is an elevation, partly in section, of part of the apparatus shown in Fig. 1.

Fig. 19 is a horizontal section on line 19-19 of Fig.l 18. f

Fig. 2() is an elevation of the same part of the apparatus shown in Fig. 18, viewed from a different angle. y

Fig. 21 is a horizontal section on line 1-217of Fig. 20.

F ig.' 22 is a diagram of the electrical connections for the controller and the belt shifter operating solenoid. y The filling machine comprises, in general, a plurality of filling units lsupported in a frame 2, each filling unit having a vibratory carrier 3 fora heater jacket 4, a carrier vibrator 5, a container 6 for insulation, a tamper 7 which serves to center the heater resistor 8 in the jacketl and to compress the insulation in the jacket, a tamper lifter 9,v a resistor support 10, which places the re-' sistor under sufficient tension to maintain the same fairly taut, an electromagnetically controlled spring actuated belt shifter 11 for stopping the operation of the unit when the heater jacket therein is filled with insulapart of the aption, and controller 12 for the belt shifter magnet.

' Frame.

rl`he frame 2 (Figs 1 and 2) supporting the filling units is made up of right and left end legs 13 fastened together by spacing tie rods 1e.

Front and rear bed channels 15 fastened together by spacing tie rods 16 extend the width of the frame and rest upon and are bolted to the end legs 13. i

Right and left end uprights 17 standing upon and bolted to the bed. channels 'lo are fastened together by spacing tie rods 18.

Cross rails 19 and 20, bolted or otherwise fastenedL to the end uprights l?, are arrangerto have fastened thereto theL carrier vibrator and tamper lifter operating mechanism and Jthe belt shifter mechanism ren spectively of the several filling units, as will more fully hereinafter appear.

il cross rail 21 bolted or otherwise fastened to the end legs i3 near the lower end thereof is arraiiged to support resilient seats for the vibratory carriers of the several filling units, as will more fully hereinafter appear.

pwardly extending angle irons 22 bolted or otherwise fastened to the end nprights 17 have fastened thereto two pairs transversely extending angle irons 23 anc Forwardly extending brackets 25 fastened to the respective pairs of transverse angle irons are arranged to support operating mechanism for the belt shifter controller and resistor support mechanism for the several filling units, as will more fully hereinafter appear.

A. transverse angle iron 2b' bolted to the A r-.f'ardly entending angle irons 22 and the end uprights i7 assists in making the upper framework rigid.

The frame is arranged to support si); :tical filling units (only three of which are shown) spaced on ten (10) inch centers, each capable of filling a tubular jacket up to Ylive feet in length.

rlhe illustrated frame has dimensions as follows:

Inches.

lVidth (331/2 itxtent i overall height 162 End legs, height 35% depth at base o1 Viomorg/ carrier.

The vibr l, 2, 3 and take the form of an elongated square or rectangular rod, is provided with an upper bracket 27 and a lower bracket 28, between which the heater acket l is supported.

rlhese brackets are adjustably fastened to the carrier so that heater jackets of dif-ien ent lengths may be accommodated.

rEhe lower arm of the upper bracket 27 (Fig. 3) carries a funnel 29 having seated in the lower end thereof a removable bushing 30, recessed to receive the upper end of the heater acket 4.

A clamp 3l fastened to legs 32 downwardly extending from the lower arm of the bracket 2? holds the bushing` 30 in place, The clamp 31 has an opening through which the ugper end of the heater jacket entends. fr gasket is arranged between the bushing and the lower end of the funnel so as to prevent the passage of insulation therebetween.

The funnel 29 is provided with a divided cover 3ft, one section being rigidly fastened to 'the funnel, while the other section is pivoted thereto so that it may be swung aside so as to allow access to the funnel.

r)the funnel 29, and its cover with a gasket therebetween are rigidly fastened to the lower arm of the upper bracket 2l', so as to prevent movement with respect to the bracket while the carrier is vibrating.

rilhe container 6 for the insulation is ried by and rigidly fastened to the upper arm of the bracket 2T by means of abracket arm 6. T he container spout 3G entends through. an opening in the funnel cover 3d and is positioned to feed insulation from the container into the funnel 29. The `flow of insulation from the container may be regulated by means of a valve 3'? in the spout 36.

The gasket 35 fits tightly around the spout 36 and prevents the escape of insulation through the top of the funnel.

rlChe flow of insulation from the container is assisted by means of a piston 38 resting on top of the insulation and guided by piston rod 39 connected thereto and extending through an opening in the cover t() of the container.

rlhe position of the piston rod 39- indicates the amount of insulation in the container. Thus as the amount of insulation in the container decreases, the length of the piston extending therefrom gradually decreases.

' l lower bracket 23 6 and T) has ne a tapered seat el for receiving the electric heater terminal 4t2 or a temporary plug (or cap) for the lower end of the heater jacket 4;. rl`he tapered seat il is formed in the upper end or head 43 of a plunger both the head and the plunger beingl slieable in penings in the lower bracket 28.

t Q1 I lz-:l F j," 1, u 1 1 l.. '4., ,1, l cushion i o inaneL or other suitable arterial provided in the tapered seat 41 is held in place by a inetal ring Y43 screwed vor otherwise fastened tothe head 43. c

' This cushion 4l seals the outer end 'of the tubular terminal 42 sofas lto prevent the escape of insulation through the opening therein while the tubular heater jacket is being filled with insulation.

The tapered seat 4l is held in lifted position by inea-ns of a pivoted cani 45 engaging a roller 46` fastened to the lower end of the plunger The plunger is prevented frein turning with respect to the bracket 28 by incans of a ke 4? fastened to the bracket and extending into a `longitudinal slot in the plunger.

The piston or plungerl 44 inay be raised and lowered by ineans of the pivoted cain arranged within an opening in the lower' end of the bracket and cooperating with the roller 46 on the lower end of the plunger. The cani is iixed to a shaft 45 supported in the bracket 28 and is operated by a handle 43. lihcn the Vpiston roller 46 rests in the cani groove 45a the tapered seat 4l is in elevated position, and is inlowered .position when the roller rests in the cani groove 45h. Y l

To keep the heater jacket 4 straight-and thus prevent bending or buckling thereof, it is held'interniediate its ends in fixed relationV to the vibratory `carrier 3. For this purpose `a bracket 49 (Figs. 3 and 5) rigidly fastened to the carrier 3 and adjustable thereon has hinged thereto a pair ofr arms carrying at their outer or free ends rernovable oppositely grooved or v.slotted aws 5l arranged to receive therebetween the jacket 4. j l

A coil spring 52 interposed between the arms tends normally to hold the jaws apart. The jaws, however, may be clamped against the heater jacket 4 in opposition to the force of the spring 52 'by' ineans of a cani 53 Yhinged vto one end of the rod extending through the arms 50 and having a shoulder abutting one of the arrns. The caIn 53 may be actuated' by the handle 53 fastened thereto.

`When adjusting a filling unit for accominodating the heater jacket, a bushing 30 having an inner diameter Vequal to the inside dialneter of the jacket is clamped in place at the lower end of the funnel 29. Y

The upper and lower brackets 27 and 28 are then adjusted so that the particular heater jacket of a definite length may be seated therein. The brackets are then locked in adjusted position on the carrier.

llfhen arranging the jacket in the carrier the tapered seat of the lower bracket `28 is lowered andthe heater terminal fastened to the acket, or the temporary cap or plug for the end thereof, is placed in the lowered tapered seat The upper end of the acket is then arranged beneath the bushing 30 and the lowered vtapered seat israised softhat the upper end of the jacket is inoved through the opening in the clamp 31 and into therecessed bushing 30.v The jacket may then .be clamped between the clamping jaws 5l of the intermediate bracket 49. The jacket is now rigidly held-in the vibratcry carrier.

' Carrier vibrator.

The vibratory carrier 3 (Figs. 2 and 6) is resiliently supported by a bracket 55 bolted or otherwise rigidly fastened to the lower fraine cross rail 2l. The vibratory carrier extends throughran opening in the bracket 55 .and has an adjustable collar 56 secured thereto. The collar 56 rests upon a compression spring 5'? surrounding thefcarrier 3 and seated on the bracket 55. The resilient support for the vibratory carrier is provided with dust-proof casing 53. The vibrator by which the carrier 3 is vibrated'comprises a rotatable disc 59 (Figs. 3, 8 and l0) mounted upon a shaft 60 carry! ing in peripheral grooves thereof a plurality of evenly spaced rollers 6l which project beyond the periphery of the disc 59. Y

These rollers 6l successively engage a roller 62 Acarried 'in the Vupper end of the head 63 fixed to the carrier 3. 4The-head 63, which is `adapted to reciprocate in a vertical opening in the vibrator housing 64, is prevented from turning with respect thereto by means of a flat pin 65 extending through an opening in and fixed to the heard 63. This pin 65 projects into diamet-rically opposed vertically disposed slots 66 provided in the vibrator housing. j

Longitudinal inoveinent of the rollers 6l is prevented by the housing end cover plate 67 which in cooperationv with an interposed .gasket 67 serves to keep dirt and other foreign substances out of the vibratory housing. j

As the! disc 59 is rotated, the vibrator .rollers 6lA carried thereby successively engage the carrier roller 62 and as a roller 6l engages roller 62 the carrier is forceddownward against the action of the spring 5'?. Then as the roller 6l nieves out of engagement with the roller 62, the spring 57 forces the carrier 3 upward until the roller 62 engages the periphery of the disc 59.

Thus, during the rotation of the disc` 59 the carrier 3 is rapidly vibrated'through a distance determined by the amount which the rollers 61 extend beyond the periphery of the disc 59.

It has been found that satisfactory results are obtained by vibrating the carrier 3 approxiinately three-sixtyfourths (3/64) of an inch.

The vibratory housing 64 is rigidly secured to a bracket plate 68 as by being cast integrally therewith. The bracket plate 63 is bolted or otherwise rigidly fastenedto the frame cross rail 19.

rllhe vibrator shaft GO is journaled in bearings provided in the housing Gil and in a bracket arm 69 (Figs. 8 and 9) formed integrally with the bracket plate 68, or otherwise rigidly fastened thereto. The vibrator shaft carries at its outer end two pulleys 7 O and 71, the former being loosely mounted thereon, and the latter xed thereto so as to rotate therewith. rlhese pulleys 70 and 71 are held in proper position on the shaft 60 by a Collar 69 fastened thereto.

The fixed pulley 71 is arranged to be driven, whereby the vibrator disc and rollers carried thereby are caused to rotate to impart vibrator-y movement to the carrier 3;

rllhe vibration of the carrier 3 causes the insulation to flow freely from the container 6 through the funnel 29 and bushing 30 and down into the heater jacket Il.

rllhe constant vibration of the heater jacket 4 aids in idling with insulation all space around and about a helical resistor arranged within the jacket, and prevents clogging of the insulation in the upper part of the jacket before the lower part is filled.

Ummnon (lf/eve.

The pulley 71 is driven from a drive shaft 72 (Figs. 1, 3, 8 and journaled in bearings provided in upwardly projecting rear brackets 73 of the frame and uprights 17. rlhis drive shaft 72 extends the length of the frame and is provided with pulleys 7 d fixed thereto. There is one pulley for each filling unit of the machine. rl`he drive shaft pulley 74 is connected with the pulley 71 fixed to the vibrator shaft by means of a belt 75 passing through an opening 75 in the frame cross rail 19.

The brackets 73 in which the drive shaft 72 is journaled are connected at their free ends by means of a tie rod 76 extending through a spacing` tube 77.

lThe drive shaft 72 may be driven from an apjn'opriate source of power', as by means of a belt passing over a pulley 78 fixed to the drive shaft between the left end bracket 73 and a bracket 79 bolted or otherwise rigidly fastened to the left end upright 17 and provided with a bearing for receiving the end of the drive shaft.

As the rate of vibration of cach carrier 8 is determined by the speed of rotation of its vibrator shaft 60, it inay be varied by varying the relative diameters of the vibrator shaft pulley 71 and the individual driving pulley 74.

in the form of a tube having an internal diameter such that the tamper will slide freely over the helical resistor 8 arranged in the heater jacket 1.

The tubular tamper 7 provided with outwardly extending radial lugs 8O extends into the jacket and serves to center and position the resistor 8 and compress the insulation.

The radial lugs 80, while s*i acing the tubular tamper from the jacket, allow the free discharge of insulation therebetween.

The tubular tamper 7 (Figs. 2 and 10) extends through the bushing 30 and the funnel 29, and an opening in the cover therefor, through a removable bushing 81 secured to the upper arm of the carrier bracket 27 and into a guide tube 82. This guide tube 82 is supported by the brackets 25 in which it is clamped.

rllhe removable bushing 81 is seated pocket 83 on the upper bracket arm is retained therein by a cap screw S3.

1n order that the tubular tamper 7 Vmay be retained in elevated position when removing a filled jacket from the carrier and placing therein a jacket to be filled, a clamping screw 84: is threaded through the wall of a bushing 81 seated in the pocket 83 in which it is fastened by a screw 83. This clamping screw 84 has a soft metal tip Se for engaging the tubular tamper 7. free end 85 of the clamping screw operating handle 85 is weighted so as to 'prevent the screw Se moving in and out due to the vibration of the vibratory carrier.

The tubular tamper 7 has fastened to its upper end a tubular weight S6 (see 18), which increases the effectiveness of the tamper.

The tubular tamper 7 above the radial spacing lugs at the bottom thereof cooperates with the tubular jacket to form an unobstructed annular passageway for the insulation.

in a and Tramp er Zz'fiier.

The lifter (see Figs. 10 and 11) for periodically lifting the tubular tamper 7 comprises a pair of rotatable yielding` jaws or shoes 87, each fastened to one end of flat spring 88, the other end of which is fastened to a collar 89 lined on a rotatable shaft 90.

Each collar is slotted to receive the guiee jaw or shoe supported thereby. The shafts 90 are journaled in bearings provided in bracket arms 91 and 9e (see Figs. S and 9), the base 92 of which is seated on the bracket plate 68, and bolted or otherwise rigidly fastened thereto and to the frame cross rail 19.

Meshing spur gears 93 located between the bracket arms 91 and 94 are fixed to the shafts 90 so that the rotation of one shaft causes the other to rotate at the same speed but in the opposite direction. The respec- The lll)

ien

tive shafts rotate in the directions indicated by the arrows thereon. L

The tamper lifter is'actuated (see 8, 9 and 10) from the vibrator shaft 60 by means of a spur gear 93 fastened thereto meshingwith an intermediate spur gear 96, which in turn meshes with a spur gear 97 fixed to the rear lifter shaft 90. A collar 90 fastened to the rear lifter shaft 90 holds the gear 97 in proper position. The intermediate spur gear 9G, which is for the the proper direction, is lined to a spindle 96 resting in bearings provided vin the bracket arm 69 and in the vibrator heus! ing '611.

As the lifter shafts 90 are rotated the yielding jaws or shoes 87 carried thereby engage the tubular tamper 7 and lift the same a distance of 'about one-half (1l/2) inch and then move out of engagement therewith, allowing the tamper 7 to drop, thus tamping or compressingthe insulation in the heater jacket 4l.

Awhile ui@ rampe; is being haai nai' dropped periodically, the jacket is gradu ally filling with insulation; consequently, the insulation is rising higher and higher inv the jacket.

Thus, while the jaws 87 always lift the tamper 7 the same distance, the point from .which the tamper is lifted is continually changing as the insulation rises in thejacket. Therefore the tamper is gradually raised independentlyof the lifter until the jacket is filled.

Resistor support.

` In order that the tubular tamper 7 as it i. periodically lifted and dropped may slide reely over the helical resistor 8, it is desii-able that the helical resistor be maintained fairly taut; consequently the resistor is kept under tension while the jacket is being` filled with insulation.

The support or tension maintaining means (see Figs. 13, 18` and 20) comprises a. wire or rod 98 having at its lowerend a hoek 99 for engaging the upper end of the This wire 98, which may be.

resistor made of piano wire, extends up through the tubular tamper 7 and the guide tube 82, and at its upper end is rigidly fastened to an arm 100 secured to an adjustable hoek rod 101.

The hoek red 101, which may be square or rectangular at its upper end and round at its lower end, extends through a guide pipe 102 clamped to the brackets 25. A bushing 102 in the end of the guide pipe 102 prevents the turning of the hook rod 101. rThe hoek rod isheld in kadjusted position by a clamping screw 103 (see Fig. 13) pro-rv jecting through the pipe wall and a collar Y 104 fastened thereto at its lower end The rotating the lifter shafts 90 in' clamping screw 108 has a soft metal tip 103 which engages the hook rod 101.

17V hile a heater acket 4: is being placed in the vibratory carrier 3, the upper end of the resistor 8 is connected to the hook 99 of the. tensioning wire 98 and the hook rod 101 raised to take up the slack in the resistor.

l/Vhile the heater jacket is being held' in itsproper place in the vibratory carrier, the lower tapered seatV for the jacket must be elevated and the intermediate clamp on the carrier set to grip the jacket. Meantime the hook rod 101 is temporarily held in raised position. l l

A knurled knob` or handle 105 on the lower end of the hook rodA 101 provides ready means by which the same may be raised.

The mechanism for temporarily holding the hook rod 101 in raised position coinprises a head 106 rigidly fastenedV in the guide pipe 10Ql and having a tapered opening for receiving a split friction cone 10T. By means of a cap nut 108, the friction cone 107 is force-d in the tapered opening of the head v106 until lthe friction between thev cone 107 and the hook rod 101 is sufficient to hold the rod in'any raised position to which it may be adjusted. Thecap nut 108 may then be locked to the head 106 as by a set screw 108.

Y After the-heater jackethas been securely clamped inthe vibratory carrier, the hook rod101 is clamped in raised position by the clamping screw 103, so as to avoid the possi-y bility of the hook rod 101 falling due t0 the 'Bezzi Safer.

The belt shifter (see-Figs. 8, 14, 15 and 16) is provided for shifting the belt 75 from the pulley "(1 fixed on the vibrator shaft 60 to the pulley 70 loose thereon and thus stop the operation of the filling. unit whenthe heater jacket has been filled to the desired height with insulation.

This belt shifter comprises a lever 109 piveted on a pin 109 secured to the frame cross rail 20 and having at its upper end a pair of fingers 110 for embracing the belt 75 to be shifted thereby, and a spring actuated rod 111 connectedthereto and normally held restrained by a solenoid 112. v a

rThe horizontally disposed actuating rod 111 connected tor the lever 109- ils slidably mounted in openings provided in projections 118 of a. bracket 114 screwed'or otherwise rigidly fastened to the frame erossrail 20.

A lcoil spring 115 encircling. the rod 111 and interposed between a collar 116 .fastened ing 120 is energized by the closure of the controller switch, as will more fully herein-d after appear, the raising of the plunger withdraws the latch 117 from the pin 113, thus allowing the spring to move the rod 111 to the right until the collar 116 abuts thel right bracket projection 113. Movement of the rod in the other direction is limited by a collar 121 fastened thereon. llhen the rod 111 is moved to right, the belt shifter shifts the driving belt from the fixed to the loose vibrator shaft pulley.

The Solenoid 112 is mounted on a plate 122, of libre or other insulating material, screwed or otherwise fastened to the frame cross rail 20.

The solenoid 112 is provided with two terminals 123 and 1211, to which the respective ends of the solenoid winding are connected.

rllhese terminals are in the form of contact Y rods extending through the insulating plate 122, enlarged openings in the frame cross rail 2O and a plate 125, of slate or other insulating material, rigidly fastened to the bacl; of the frame cross rail 20. Each of these contact terminal rods 123 and 124 is providedwith appropriate nuts and washers by which electric conductors may be fastened thereto. l

The electric conductor 123 leading to a Contact of the controller switch is connected to the rear end of the terminal rod 123, while the conductor127 leading to one pole of a source of current supply is connected to the rear end of the terminal rod 124.

Similar terminal rods 123 and 129 extending through "the libre insulating plate 122, enlarged openings in the frame cross rail 20, and the slate insulating base 125 are provided at their forward ends with respective contact blocks and 131, and at their rear ends with appropriate nuts and washers by which they electric conductors may be connected therewith.

rhe conductors 126 and 132 extend up through a vertically disposed protective conduit to the controller, while the conductors 127 and 133 extend `through a horizontally disposed conduit 127 to a. source of current supply.

Each of the contact blocks 130 and 131 is mounted upon the libre insulating plate 122 and is rigidly fastened thereto by the respective connected conductor rods and positioning pins.

An electric conductor 132 leading to a contact of the controller switch is connected with the conductor rod 123, while lan electric conductor 133 extending to the other pole of a source of current supply, is connected to the conductor rod 129.

Connection between the contact blocks 13() and 131 is effected by means of a contact spring 134i rigidly fastened to the upper end of a contact strip 135 carried by an insulating block 135 secured to the slidable rod collar 116. l

Thus, when the latch 117 disengages the pin 113 upon the energization of the solenoid winding 120, the compression spring 115 moves the rod 111 to the right, shifting the belt from the fixed to the loose pulley and moving the contact spring 1341 away from and out of engagement with the contact blocks 130 land 131.

Therefore, when the belt is shifted the solenoid energizing circuit is opened between the Contact blocks.

In order that the belt may be readily shifted and the operating of the vfilling unit stopped in case of an emergency, the latch 117 is provided with a downwardly entending rod 136 having a` knob 13G at the lower end thereof. rllhus, by raising the rod, the latch is caused to disengage the pin 113 to allow the compression spring to operateV the belt shifter.

Controller.

The'controller (see Figs. 13 to 21) by which the energizing or operating circuit of the belt shifter solenoid is controlled coinprises a switch having a movable Contact 137 and a pair of adjustable stationary contacts 133.

rlhe movable contact 137 is supported Vat the top of the tamper tube 7, and is insulated therefrom by an insulating bushing 139 and from the tension rod or wire 93 by a bushing 140.

rthe adjustable contacts 133 of the controller switch are secured to an insulating bushing 141 and are connected to respective Contact rods 14:2 fastened to and insulated from an arm 1413 se as to he movable therewith, as will more fully hereinafter appear.

An insulating guard 1111 for the contacts 133 is fastened to the. insulating bushing 1li-1 so as to provide a casing for the contacts and insulate them from the metallic guide tube 32 and the extension 32 therefor.

rl`he guide tube extension 32 allows the Contact brush casing 116 to be raised when a long heater jacket is to be filled, so the movable controller Contact 137 carried by the tamper 7 will not engage the stationary controller contacts 133 until the jacket is filled with insulation. The tips of screws 33a mounted in the guide tube extension extend inte longitudinal slots 33b in the guide tube 32 so as to prevent any turning the guide tube extension 82 and is'tastened thereto at its upper end by means of set screws 146k or other fastening means.

These -contact brushes 145 are connected with terminals 147 and 147 also mounted in the insulating easing v146.

The electric conductor 126 connected with' one terminal of the solenoid winding is connectedto one of the controller terminals 147 by means ont a binding` screw or other fastening,- means. Likewise the electric conductor 132 connected to the solenoid contact block 130 is connected to the other controller terminal.

The electric conductors 126 and 132 veX- tend through and are protected by a con-v duit 126 clamped Yto the bracket arms 25 and having an insulating bushing 132 in the upper end thereof.

rThe controller terminals 147 and 147 are mounted in pockets provided in the casing, 146 and are protected by an insulating guard 148 through which the electric conductors 132 and 126 extend. Theinsulating casing 146 may also be provided with a cap or cover 149 of insulating material.

ylhe solenoid operating circuit may be traced Yfrom one polefota source of current supply (not shown)` over conductor 127, terminal 124, 4solenoid winding,` 120,V

terminal 123, conducto-r 126, terminal 147, brush 45, contact rod 142, controller con tact 133, movable controller contact 137, contact rod 142, brush 145, terminal 147 conductor 132, terminal 128, contact block 130, contact spring \134, contact block 131, terminal 129, and conductor 133 to the other pole oi the source oit current supply.

in order that the filling unit may be stop-- pcd automatically at theV proper time when the heater jackets of different lengths are being; filled, the controller switch contacts 13S are adjustably supported within theA guide tube 32;'and these contacts are so interlinked with the adjustable upper bracket 27 of the vibratory carrier that when this bracket is raised or lowered on the carrier, the controller switch contacts 133 are raised or lowered the same distance.

For this purgosethe upper arm oi the adv justable bracket 27 connected by means of a supporting rod 150 with the arm 143 which supports the adjustable controller switch contacts The contact supporting arm 143 is rigidly fastened to the upper end ot the supporting rod 150 which extends through a guide tube 151 clamped in the trame'brackets 25,' bushing 151 lat the upper end of the guide tube k151 prevents any turning movement of t-he supporting rod 150 which for the major lportion ot its length is square or rectangular in cross section.

l In order that the vibrations of the carrier 3 transmitted to the controllerl switch contacts 138 'may be reduced, a. resilient connection between the carrier bracket 27 andthe supportingrod 150 is provided. rlhis resilient connection iforms a cushioned seat for the supportingrod.

The cushioned seat provided for the rod 150 comprises a cylinder 152 provided with y a piston 153 connected to the supporting rod 15G by means ci a piston rod 154. The pis-y ton 153 is seated upon a compression spring 155 arranged within the cylinder 152 belo.T the piston.

The cylinder 152 is rigidly fastened to an extension orP the upper arm ot the carrier bracket 27 by means `ot a flanged internally threaded collar 156 bolted or otherwise fastened to the bracket extension. The cylinder 152 is provided with a head 157, the upper end of whichvis closed by a cap 157 having a central opening therein for kthe piston rod To provide for relatively close adjustment of the switch contacts 138 the piston rod 154 and the supportingrod 150 are connected by means of aturnbuckle 15S. j Y

The turnbuckle 153 may be locked in adjusted .position by nuts 158v 'at each end thereof Vso as to preventchange of position thereof due to vibration of the vibratory carrier. l

ViThen the upper carrier bracket 27A is raised or lowered, the supportinf; rod v150' and the contact carryingarm 143 tasten-ed thereto will move therewith so that the controller switch contacts 138 will move the' same distance that the carrier bracket is moved.

Ordinarily when the carrier oft the filling` unit is to he arranged Afor iiliingv heater jackets of a particular length, the position oi" the lower carrier bracket 23 on the vibratory carrier is changed accordingly, so that the distance between the upper and lower brackets is such that the heater jacket may be aocommodated therebetween,

However, when placing a. heater jacketin the vibratory carrier, further adjustment may be necessary in order that the heater jacket may be rigidly ,held at both its upper and lower ends. 'ilheretora it further adjustment is needed after the heater j acketis placed in the vibratory carrier, this adjustment is made by raising or lowering the upper carrier bracket 27.

Vihile but one embodiment has been illustrated and d scribed, it is obvious that the invention contained `herein is susceptible ot various other embodiments and adaptations.

S il

l. Ofi

llO

i iff) The invention claimed is:

1. ln a machine for filling the jacket of an electric heater with insulation and separating therefrom the heater' resistor arranged therein, the combination of a vibratory carrier for the acket, a container from which insulation is discharged into the jacket, a tamper periodically lifted and dropped to compress thc insulation in the jacket, a friction slice for engaging` the tamper to hold the same in elevated position, and means for moving the shoe into and out of engagement with the tamper.

2. ln a machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor arranged therein, the combination of a vibratory carrier for the acket, a. container from which the insulation is discharged into the jacket, a tamper periodicallyv lifted and dropped to compress the insulation in the jacket, clamping means for engaging the tamper to hold the same in eleva-ted position, and an operative handle for the clamping means, said handle being weighted at one end so as to prevent operation of the clamping means while the carrier is being vibrated. Y

3. A machine for filling the jacket of an electric heater withinsulation and separating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a container for the insulation, a funnel positioned over the upper and open end of the jacket, a spout for the container through which insulation is Vdischarged into the funnel, and a piston in the container for assisting` in discharging insulation therefrom.

Ll. A machine for `filling the jacket of an electric heater w'th insulation and separating therefrom the heater resistor arranged tlurein, having, in combination, a vibratory carrier for the jacket, a container for the insulation, means for guiding the insulation from the container' into the jacket, and a piston in the container for assisting in the discharge of insulation therefrom.

machine for filling the jacket of an electric heater with insulation and separating there from the resistor arranged therein, haring', in combination, a vibratory carrier for the cket, a container' for the insulation, means for guiding the insulation from the container' into the jacket, and means including a piston in the container and mechanism for vibrating the container to cause the insulation to be discharged from the container.

6. ln a machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor' arranged therein, the combination of a carrier for the jacket, a rotary vibrator for rapidly vibrating the carrier` means for feeding the insulation into the jacket, a tamper for compressing the insulation therein, and a tamper lifter geared to and driven by the vibrator shaft.

7. A machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a rotary vibrator therefor, a container from which insulation is discharged into the jac tet, and means for stopping the vibration of the carrier when the jacket is filled with insulation comprising an electromagnet controlling the vibrator, a circuit closing switch for the electromagnet operating circuit controlled by the height of the insulation in the jacket, and means actuated by the electromagnet for opening the operating circuit thereof.

S. A machine for filling the jacket of an electric heater with insulation andseparating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a power driven vibrator therefor, a container from which insulation is discharged into the jacket, and means, for disconnecting power from the vibrator' when the jacket is filled with insulation, comprising an electromagnet, a spring operated power disconnecting rod normally held against operation by the electromagnet, and a circuit closing switch for the electromagnet operating circuit controlled by the height of insulation in the jacket. Y

9. A machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a power driven vibrator therefor, a container from which insulation is discharged into the jacket, and means, for disconnecting` power from the viln'ator when the jacket is filled with insulation, comprising an electromagnet, a spring operated power disconnecting` rod normally held against operation by the electromagnct, a circuit closer in the electromagnet operating circuit controlled by the height of insulation in the j acket, and means actuated by the electromagnct for opening the operating circuit thereof.

l0. A ymachine for filling the jacket of an electric heater with insulation and separating therefrom the heater' resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a power driven vibrator therefor, a container from which insulation is discharged into the jacket, and means, for disconnecting power' from the vibrator when the jacket is iilled with insulation, comprising an electromagnet, a spring operated power disconnectingrod normally held against operation by the electromagnet, a circuit closing switch for the electromagnet operating circuit controlled by lill) the height of insulation in the jacket, and a pair of stationary contacts in the operating circuit normally bridged by a contact arm carried by the power disconnecting rod. 11. A machine for filling the jacket of an electric heater with insulation and separating therefrom the. heater resistor arranged therein, having, in combination, a container arranged to discharge insulation therefrom into the jacket, a tamper for compressing the insulation in the acket, power driven mechanism vfor vibrating the container and for vperiodically raising the tamper and allowing the same to drop, an electromagnet, spring operated rod, for disconnecting power from the mechanism, normally held against operation by the electromagnet, and a circuit closing switch for the operating circuit of the electromagnet adapted to be closed when insulation in the jacket reaches a predetermined height,

, 12. In amachine for filling the jacket of an electricy heater with insulation and separating therefrom the heater resistor arranged therein, the combii'ation of a vibratory carrier having upper and lower brackets in which the jacket may be seated, one bracket being adjustable so that jackets of different lengths may be accommodated, a power driven vibrator for the carrier, means for introducing insulation into the jacket, an electromagnet for disconnecting power from the vibrator, a circuit closing switch, for the operating circuit of the electromagnet, having a relatively stationary contact supported by the adjustable carrier bracket and a movable contact adapted to be moved toward the relatively stationary contact as the jacket fills with insulation, and means for absorbing the vibration of the carrier so as to reduce the movement of the relatively stationary contact.

13. In a machine for filling the acket o an electric heater with insulation and sep-arating therefrom the heater resistor arranged therein, the combination of a vibratory carrier having upper and lower brackets in which the jacket may be seated, one bracket being adjustable so that jackets of different lengths may be accommodated, a power driven vibrator for the carrier, means for introducing insulation into the jacket, an electromagnet for disconnecting power from the vibrator, a circuit closing switch, for the operating circuit of the electromagnet, having relatively movable and stationary contact-s, a vertically disposed rod having an arm from which the stationary contact is suspended, a vibration absorbing dash pot carried by the adjustable carrier bracket and having a piston connected to the vertically disposed rod, and means for moving the movable contact into engagement with the stationary contact when the jacket' is filled to a predetermined height.

14. A machine for filling the jacket of an electric heater with insulation and thus separating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the acket, a container for the insulation, means for discharging insulation from the container into the jacket, and means for keeping the resistor under tension as the insulation is being introduced into the jacket, said tensioning means comprising an adjustable vertically extending rod having' an arm at its upper end and a wire or cable fastened at its upper end to the arm, and a hook lat its lower end for engaging the resistor.

15. A. machine forI filling the acket of an electric heater with insulation and thus sepating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier for the jacket, a container lfor ythe insulation, means for discharging insulation from` the container into the jacket, and means for keeping the resistor under tension as the insulation is being introduced into the jacket, said tensioning means com- 'prising an adjustable vertically extending rod having an arm at its upper end and a wire or cable fastened at its upper end to the arm, and a hook at its lower end foren-l gaging the resistor, a friction cone for temporarily maintaining the rod in adjusted position, and independent means for locking the rod in adjusted position.

16. A machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor arranged therein, having, in combination, a vibratory carrier provided with upper and lower brackets between which the jacket may be seated and adjustable thereon so as to accommodate jackets of different lengths, a container supported by the upperbracket and arranged to discharge insulation therefrom into the acket, power driven mechanism for vibrating the carrier, and means, for disconnectin g power from `the vibrating mechanism when the jacket is filled to a predetermined height, comprising a power disconnecting electromagnet, av circuit closing switch for the electromagnet operating circuit, a pair of relatively stationary contacts for the switch supported by and adjustable with the upper carrier bracket, a bridging contact for the switch adapted to be moved into engagement with the stationary contacts when thev jacket is filled to a predetermined height, and a pair of contact shoes connected to the electromagnet operating circuit and engaging the respective stationary switch contacts.

17. In a machine for filling the jacket of an electric heater with insulation and separating therefrom the heater resistor arranged therein, the combination of a vibratory carrier provided with upper and lower brackets between which the jacket may be 

